"God" is just a mirror to society and one that reflect centuries old ideas.
There cruelty you see is in humans, yet we are less so than ever, which is why you are in conflict with these idea.
The act of creation assuming there was a creator doesn't presuppose anything it says in religious doctrine. This dogma need a creator more than a creator needs it.
Personally I don't believe in creator, but believing is a creator is valid. There is just no reason to associate that with any moral guide or dogma.